From the Table 5, two possible options derivs:
either the trailer tipper, for smaller containers (e.g.
30 m³) by a hook-lift system, or the push-out blade
for larger containers (up to 65 m³). Both options
will be compared and described in the text. In order
to select the best Transfer-Transport method for
the city, technical and economical characteristics
of the systems must be taken into consideration.
Option 1: Open semi trailer and sample of
methodology used
In the case of current way of transportation
to the landfill with some minor changes (Top
closing, cleaner transfer…), the available transfer
stations will be used further on, without building a
new one. The same trailers and tractors as
currently used will transport the waste and
therefore no compaction is possible, at least not to
an efficient level.
The only system which could be considered
for open trailers in this respect is the power roller.
The investment costs for this system is around
US$ 20,000 and the compaction rate is only
significant for light densities such as packaging
and paper. So with no recycling it is not
recommended to use this approach. Because of
the longer distance to the new landfill the cycle
times will increase and additional vehicles will be
necessary. Accordingly more drivers will be
needed. The vehicles will also have a higher rate
of wear and will not last as long as the currently
used vehicles.